It is normal for sperm to flow out an hour after intercourse. This is mainly because the vagina is an open organ, so the sperm will flow out. The reason for the sperm to flow out is because the vagina is an open organ, and there is no sphincter at the vaginal opening, so after an hour of coitus, standing or squatting, the sperm will flow out of the vagina more easily, and a small amount of sperm will flow out of the vagina in the semen, which is a normal condition. But there will still be some sperms stored in the vagina. Sperm flow after an hour of intercourse will not have an adverse effect on a woman’s health, nor will it affect the combination of sperm and egg cells. For those who do not know the specialty, reproductive health problems, you can go to a professional hospital to consult.